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Commit 7d2a175b9bf6e9422bebe95130a3c79a25ff4602

Authored by Michael Neuling
Committed by Benjamin Herrenschmidt
1 parent 1ac42ef844
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs 

In PTRACE_GET/SETVSRREGS, we should be using the thread we are
ptracing rather than current.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff

arch/powerpc/kernel/ptrace.c
Diff comments   View file @ 7d2a175
... ... @@ -375,7 +375,7 @@
375 375 flush_vsx_to_thread(target);
376 376  
377 377 for (i = 0; i < 32 ; i++)
378   - buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET];
  378 + buf[i] = target->thread.fpr[i][TS_VSRLOWOFFSET];
379 379 ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
380 380 buf, 0, 32 * sizeof(double));
381 381  
... ... @@ -394,7 +394,7 @@
394 394 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
395 395 buf, 0, 32 * sizeof(double));
396 396 for (i = 0; i < 32 ; i++)
397   - current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
  397 + target->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
398 398  
399 399  
400 400 return ret;